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Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Payments on revolving asset-based credit facilities Repayments of line of credit Repayments of Lines of Credit Customer-Related Intangible Assets Customer-Related Intangible Assets [Member] Schedule of Future Minimum Rental Payments Under Operating Leases Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Non-cash investing and financing transactions: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Document Period End Date Document Period End Date Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Aggregate principal amount Debt Instrument, Face Amount For the fiscal year ending July 31, 2028 Lessee, Operating Lease, Liability, to be Paid, Year Two Net operating loss and other carryforwards Deferred Tax Assets, Operating Loss Carryforwards Financing leases (in years) Finance Lease, Weighted Average Remaining Lease Term Federal Income Tax Paid, Federal, after Refund Received Excess of FIFO costs over LIFO costs Inventory, LIFO Reserve Fair value of RSU and PSU shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Accumulated other comprehensive income, net of tax Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company June Twenty Twenty Five Share Repurchase Plan June Twenty Twenty Five Share Repurchase Plan [Member] June Twenty Twenty Five Share Repurchase Plan Consolidation Items [Domain] Consolidation Items [Domain] Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Other current liabilities Operating Lease, Liability, Current Schedule of Changes in Product Warranty Liabilities Schedule of Product Warranty Liability [Table Text Block] Tradenames and trademarks Trademarks and Trade Names [Member] Chassis Inventory Chassis Carrying amount as of balance sheet date of major components of certain assembled products. 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Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block] Company Selected Measure Name Company Selected Measure Name Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Other Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount Concentration Risk [Line Items] Concentration Risk [Line Items] Product Warranty Two Term Of Product Warranty Two [Member] Term Of Product Warranty Two [Member] Changes in unrecognized tax benefits Effective Income Tax Rate Reconciliation, Tax Contingency, Percent Credit Facility [Domain] Credit Facility [Domain] Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Realized gains from the sale of fixed assets Gain (Loss) on Sale of Assets and Asset Impairment Charges Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Property, plant and equipment, estimated useful life (in years) Property, Plant, and Equipment, Useful Life For the fiscal year ending July 31, 2028 Finance Lease, Liability, to be Paid, Year Two Disposal Group Name [Domain] Disposal Group Name [Domain] Line of Credit Facility [Table] Line of Credit Facility [Table] For the fiscal year ending July 31, 2030 Finance Lease, Liability, to be Paid, Year Four Other Deferred Tax Assets, Other Award vesting rights, minimum of target compensation (as percent) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Gross profit Gross Profit Less: Amount representing interest Finance Lease, Liability, Undiscounted Excess Amount Property, plant and equipment, net Property, Plant, and Equipment and Finance and Operating Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Property, Plant, and Equipment and Finance and Operating Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Operating cash flows from operating leases Operating Lease, Payments Award Timing Predetermined Award Timing Predetermined [Flag] Number of dealerships owned Number Of Dealerships Owned Number Of Dealerships Owned Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Stock compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Level 1 Fair Value, Inputs, Level 1 [Member] Developed technology Software, Internally Developed [Member] Effective tax rate Effective Income Tax Rate Reconciliation, Percent Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Unvested restricted stock units and performance stock units (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Inventory, Current [Table] Inventory, Current [Table] Net disallowed interest carryforwards Deferred Tax Assets, Tax Deferred Expense, Disallowed Interest Carryforwards Deferred Tax Assets, Tax Deferred Expense, Disallowed Interest Carryforwards Other income (loss), net of tax Other Comprehensive Income (Loss) Other Adjustments, After Reclassification And Tax Other Comprehensive Income (Loss) Other Adjustments, After Reclassification And Tax Accrued incentives Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Debt expense Interest and Debt Expense Depreciation Depreciation expense Depreciation Vesting [Domain] Vesting [Domain] Maximum amount of tax benefits realized upon ultimate settlement (as percent) Maximum Percentage Of Tax Benefits Realized Upon Ultimate Settlement Maximum percentage of tax benefits realized upon ultimate settlement. 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Gain on business interruption insurance recovery Gain on Business Interruption Insurance Recovery Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Expiration Date Trading Arrangement Expiration Date Foreign Current Foreign Tax Expense (Benefit) For the fiscal year ending July 31, 2030 Long-Term Debt, Maturity, Year Four Postemployment Benefits [Abstract] Postemployment Benefits [Abstract] Contingent liability accrual and settlement Effective Income Tax Rate Reconciliation, Contingent Liability Accrual and Settlement Effective Income Tax Rate Reconciliation, Contingent Liability Accrual and Settlement U.S. state and local Current State and Local Tax Expense (Benefit) Cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Total stockholders’ equity Beginning balance Ending balance Equity, Including Portion Attributable to Noncontrolling Interest Unsecured notes Unsecured note Unsecured Debt Building and Improvements Buildings and improvements Building and Building Improvements [Member] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Derivative [Table] Derivative [Table] Loss contingency, number of matters Loss Contingency, Number Of Matters Loss Contingency, Number Of Matters Other Europe Other Europe [Member] Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Entity Voluntary Filers Entity Voluntary Filers Restricted Stock Units (RSUs) and Performance Stock Units (PSUs) Restricted Stock Units (RSUs) and Performance Stock Units (PSUs) [Member] Restricted Stock Units (RSUs) and Performance Stock Units (PSUs) Total unrecognized compensation costs Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Document Financial Statement Error Correction Document Financial Statement Error Correction [Flag] Segments [Domain] Segments [Domain] Interest rate swap agreements Interest Rate Swap [Member] Depreciation Property, Plant, and Equipment [Policy Text Block] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Debt issuance costs, net of amortization Debt Issuance Costs, Net Schedule of Restructuring and Related Costs Restructuring and Related Costs [Table Text Block] Restricted stock unit activity Stock Issued During Period, Value, Restricted Stock Unit Activity Stock Issued During Period, Value, Restricted Stock Unit Activity PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Term loan Outstanding term loan tranche balance Long-Term Line of Credit, Noncurrent For the fiscal year ending July 31, 2032 and thereafter Long-Term Debt, Maturity, after Year Five Finance leases (as percent) Finance Lease, Weighted Average Discount Rate, Percent Interest rate, stated percentage (as percent) Debt Instrument, Interest Rate, Stated Percentage Dividends per common share Dividends, Common Stock, Cash Stockholders’ equity attributable to THOR Industries, Inc. Equity, Attributable to Parent Coverage ratio, threshold amount Debt Covenant, Coverage Ratio, Threshold Amount Debt Covenant, Coverage Ratio, Threshold Amount ASSETS Assets [Abstract] Valuation allowance Operating Loss Carryforwards, Valuation Allowance Insider Trading Policies and Procedures [Line Items] Measurement period adjustments Goodwill, Measurement Period Adjustment Performance Shares (PSUs) Performance Shares [Member] Product, property and related liabilities Product Property Liability And Related Liabilities Recorded amount of the accrual for product liability, general property, contingencies and other related liabilities. Prepaid income taxes, expenses and other Prepaid Expense and Other Assets, Current Total deferred expense (benefit) Deferred Income Tax Expense (Benefit) Product Warranty One Term Of Product Warranty One [Member] Term Of Product Warranty One [Member] Other Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount Long-lived Assets Long-Lived Asset, Including Intangible Asset and Goodwill, Impairment and Disposal [Policy Text Block] Interest expense, net INTEREST EXPENSE (INCOME), NET: Interest Income (Expense), Nonoperating Euro Financial Institutions One Euro Financial Institutions One [Member] Number of operating segments Number of Operating Segments Class A ClassA Motorized [Member] ClassA Motorized. Schedule of Changes in Carrying Amount of Goodwill and Components of Goodwill Balance by Reportable Segment Goodwill [Table Text Block] Promotions and rebates Accrued Marketing Costs, Current Auditor Location Auditor Location Goodwill Goodwill, Gross Entity Central Index Key Entity Central Index Key Stock Based Compensation And Stockholders Equity [Line Items] Stock Based Compensation And Stockholders Equity [Line Items] Stock Based Compensation And Stockholders Equity [Line Items] Additional paid-in capital Additional Paid in Capital, Common Stock Equity [Abstract] Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Provision at federal statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Non-controlling Interests AOCI Attributable to Noncontrolling Interest [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Investment, Name [Axis] Investment, Name [Axis] Other long-term liabilities Finance Lease, Liability, Noncurrent Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Schedule of Components of Provision for Income Taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Amount Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Less: Accumulated depreciation Property, Plant, and Equipment and Finance Lease and Operating Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Property, Plant, and Equipment and Finance Lease and Operating Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Basis spread on variable rate (as percent) Debt Instrument, Basis Spread on Variable Rate Held By One U.S. Financial Institution Held By One Financial Institution [Member] Held by one financial institution. Variable Rate [Domain] Variable Rate [Domain] Total future lease payments Finance Lease, Liability, to be Paid Accumulated Other Comprehensive Income (Loss), Net AOCI, net of tax, Attributable to THOR AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Period for recognition of compensation cost, not yet recognized (in years) Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Statement [Line Items] Statement [Line Items] TOTAL ASSETS TOTAL ASSETS: Assets Schedule of Deferred Income Tax Balances Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Operating Segments Operating Segments [Member] Interest expense Interest Expense, Nonoperating Product Warranty Liability [Table] Product Warranty Liability [Table] Statutory tax rate difference Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent PEO PEO [Member] Motorcaravan Motorcaravan [Member] For the fiscal year ending July 31, 2028 Long-Term Debt, Maturity, Year Two Other liabilities Other Liabilities, Noncurrent Goodwill Goodwill, beginning balance Goodwill, ending balance Net balance Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Accounts payable and accrued expenses Business Combination, Recognized Liability Assumed, Accounts Payable, Current For the fiscal year ending July 31, 2032 and thereafter Finance Lease, Liability, to be Paid, after Year Five Changes in unrecognized tax benefits Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Other long-term liabilities Operating Lease, Liability, Noncurrent Retained Earnings Retained Earnings [Member] Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Award Timing Disclosures [Line Items] Foreign Currency Translation Adjustment (1) Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Diluted (in dollars per share) Earnings Per Share, Diluted Prepaid income taxes, expenses and other Increase (Decrease) in Prepaid Expense and Other Assets Amortization of intangible assets Amortization of intangibles AMORTIZATION EXPENSE: Intangible Asset, Finite-Lived, Amortization Expense Intangible Asset, Finite-Lived [Line Items] Intangible Asset, Finite-Lived [Line Items] Net operating loss carry forwards, portion not expected to be realized Net Operating Loss Carry Forwards, Portion Not Expected To Be Realized Net Operating Loss Carry Forwards, Portion Not Expected To Be Realized Net sales NET SALES: DESTINATION OF NET SALES BY GEOGRAPHIC REGION: Revenue from Contract with Customer, Excluding Assessed Tax Unused availability Line of Credit Facility, Remaining Borrowing Capacity Property, plant and equipment Deferred Tax Liabilities, Property, Plant and Equipment Schedule of Changes in Restructuring Liabilities Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Schedule of Aggregate Investment and Maximum Exposure to Loss Equity Method Investments [Table Text Block] RV Facilities RV Facilities [Member] RV Facilities Right-of-use assets obtained in exchange for lease obligations: Right-Of-Use Asset Obtained In Exchange For Lease Liability [Abstract] Right-Of-Use Asset Obtained In Exchange For Lease Liability Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Sales returns and allowances Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Returns and Allowances State and local income taxes, net of federal income tax effect U.S. state and local income taxes, net of federal benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Schedule of Total Contractual Debt Maturities Schedule of Maturities of Long-Term Debt [Table Text Block] Other Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent Schedule of Equity Method Investments [Table] Equity Method Investment [Table] Warranty period for retail customers (in years) Warranty Period for Retail Customer Warranty period for retail customer. Foreign Tax Authority Income Tax Jurisdiction, Foreign [Member] Total gain (loss) Derivative, Gain (Loss) on Derivative, Net Auditor Firm ID Auditor Firm ID Foreign Income Tax Paid, Foreign, after Refund Received Schedule of Future Minimum Rental Payments Under Financing Leases Finance Lease, Liability, to be Paid, Maturity [Table Text Block] Self-insurance reserves Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Self Insurance Global Intangible Low-Taxed Income / Subpart F Global Intangible Low-Taxed Income Effective Income Tax Rate Reconciliation, NCTI, Amount EQUITY INVESTMENTS AND ACQUISITION Business Combination [Text Block] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Income Tax [Line Items] Income Tax [Line Items] Income Tax [Line Items] Quarterly principal payment (as percent) Debt Instrument, Quarterly Principal Payment, Percent Debt Instrument, Quarterly Principal Payment, Percent Asset impairment charges Asset, Impairment Loss Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Common stock, shares issued (in shares) Common Stock, Shares, Issued Finished goods Inventory, Finished Goods, Gross ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Comprehensive Income (Loss) Note [Text Block] Accounts receivable Increase (Decrease) in Accounts Receivable Product and Service [Domain] Product and Service [Domain] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Deferred income tax liabilities, net Deferred Income Tax Liabilities, Net Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Gain (loss) recognized in income, net of tax Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Employer match and administrative fees for 401(k) plan Defined Contribution Plan, Cost For the fiscal year ending July 31, 2029 Lessee, Operating Lease, Liability, to be Paid, Year Three Subsidiaries valued inventory in first-in, first-out method FIFO Inventory Amount Termination Date Trading Arrangement Termination Date Class C-RP Units Class C-RP Units [Member] Class C-RP Units Subsequent Events [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Amortizable intangible assets: Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived U.S. federal statutory tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Other Other Liabilities, Current Accrued interest and penalties Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Accounts receivable and prepaids Business Combination, Recognized Asset Acquired, Accounts Receivable And Prepaid Expenses, Current Business Combination, Recognized Asset Acquired, Accounts Receivable And Prepaid Expenses, Current Entity Public Float Entity Public Float Fair Value as of Grant Date Award Grant Date Fair Value Schedule of Goodwill [Table] Goodwill [Table] Gain on insurance recovery Gain On Insurance Recoveries Gain On Insurance Recoveries Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Remaining authorized repurchase amount Share Repurchase Program, Remaining Authorized, Amount Deferred revenue Business Combination, Recognized Liability Assumed, Deferred Revenue, Current Arrangement Duration Trading Arrangement Duration Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Cost Intangible Asset, Finite-Lived, before Accumulated Amortization Foreign currency transaction gain (loss) Gain (Loss) on Foreign Currency Fair Value Hedge Derivatives Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Foreign currency remeasurement (gains) losses Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount Income (loss) from investments Income (Loss) from Equity Method Investments Foreign tax credit Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Amount Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Amortization of right-of-use assets Finance Lease, Right-of-Use Asset, Amortization Unrecognized tax benefits Deferred Tax Assets Unrecognized Tax Benefits Non Current Deferred tax assets unrecognized tax benefits non current. 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none outstanding Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Inventory write down estimated loss Inventory Write Down, Estimated Loss Inventory Write Down, Estimated Loss Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activity Hedging Designation [Axis] Hedging Designation [Axis] Auditor Information [Abstract] Auditor Information Inventory [Line Items] Inventory [Line Items] Credit Facility [Axis] Credit Facility [Axis] RESTRUCTURING ACTIVITIES Restructuring and Related Activities Disclosure [Text Block] For the fiscal year ending July 31, 2031 Finance Lease, Liability, to be Paid, Year Five Name Measure Name Freedom Roads, LLC Freedom Roads [Member] Freedom Roads [Member] Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Other Other Other Operating Segment [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] United States Income (Loss) from Continuing Operations before Income Taxes, Domestic Additional Paid-in Capital Additional Paid-in Capital [Member] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Goodwill impairment Goodwill, Impairment Loss Executive compensation limitation under Section 162(m) Effective Income Tax Reconciliation, Section 162(m) Limitation, Amount Effective Income Tax Reconciliation, Section 162(m) Limitation, Amount North American Motorized North American Motorized North American Motorized North American Motorized [Member] Motorized. Name Trading Arrangement, Individual Name Accrued expenses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Company Selected Measure Amount Company Selected Measure Amount Unrealized (gain) loss on fair-value investments Equity Securities, FV-NI, Unrealized Gain (Loss) DEPRECIATION AND INTANGIBLE ASSET AMORTIZATION EXPENSE: Depreciation, Depletion and Amortization Subtotal Inventories Inventory, Gross Secured Overnight Financing Rate (SOFR) Secured Overnight Financing Rate (SOFR) [Member] Unrecognized tax benefits that, if recognized, would affect the company's income tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate For the fiscal year ending July 31, 2031 Long-Term Debt, Maturity, Year Five Operating leases (in years) Operating Lease, Weighted Average Remaining Lease Term Schedule of Differences Between Income Tax Expense at Federal Statutory Rate and Actual Income Taxes Schedule Of Differences Between Income Tax Expense At Federal Statutory Rate And Actual Income Taxes [Table Text Block] Schedule Of Differences Between Income Tax Expense At Federal Statutory Rate And Actual Income Taxes [Table Text Block] Non-PEO NEO Non-PEO NEO [Member] Executive compensation limitation under Section 162(m) Effective Income Tax Reconciliation, Section 162(m) Limitation, Percent Effective Income Tax Reconciliation, Section 162(m) Limitation, Percent Customer Concentration Risk Customer Concentration Risk [Member] Cost of products sold COST OF PRODUCTS SOLD: Cost of Product and Service Sold Award Timing Method Award Timing Method [Text Block] Net increase (decrease) in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Payments on other debt Repayments of Other Short-Term Debt Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Total deferred tax assets, net of valuation allowance Deferred Tax Assets, Net of Valuation Allowance Total deferred tax assets Deferred Tax Assets, Gross Share-based Payment Arrangement, Tranche Three Share-Based Payment Arrangement, Tranche Three [Member] Net income attributable to THOR Industries, Inc. Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Proceeds from dispositions of property, plant and equipment Proceeds from Sale of Property, Plant, and Equipment Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Restatement Determination Date: Restatement Determination Date [Axis] Schedule of Components of Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Product Warranties Standard Product Warranty, Policy [Policy Text Block] Other Other Corporate And Eliminations [Member] Corporate and Eliminations [Member] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Finite-lived intangible assets, amortization period (in years) Intangible Asset, Finite-Lived, Remaining Amortization Period Weighted-average common shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Statistical Measurement [Domain] Statistical Measurement [Domain] Class B ClassB Motorized [Member] ClassB Motorized. Document Fiscal Year Focus Document Fiscal Year Focus Stock Units Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Customer [Axis] Customer [Axis] Rental Vehicles Rental vehicles Rental Vehicles [Member] Common stock—par value of $.10 per share; authorized 250,000,000 shares; issued 67,659,100 and 67,282,807 shares, respectively Common Stock, Value, Issued For the fiscal year ending July 31, 2027 Lessee, Operating Lease, Liability, to be Paid, Year One Schedule of Restricted Stock Unit and Performance Stock Unit Activity Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Payments related to vesting of stock-based awards Payment, Tax Withholding, Share-Based Payment Arrangement Schedule of Components of Long-Term Debt Schedule of Long-Term Debt Instruments [Table Text Block] Settlements Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Other Other Assets, Miscellaneous, Noncurrent Stock-based compensation, requisite service period (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period Restatement Determination Date Restatement Determination Date Tax Jurisdiction of Domicile [Extensible Enumeration] Tax Jurisdiction of Domicile [Extensible Enumeration] Changes in valuation allowances Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Inventory valuation expenses Inventory Write-down WEATHER DAMAGE AT MANUFACTURING FACILITIES Unusual or Infrequent Items, or Both, Disclosure [Text Block] Schedule of Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Amendment Flag Amendment Flag Total Restructuring Costs and Asset Impairment Charges Goodwill [Line Items] Goodwill [Line Items] Current liabilities: Liabilities, Current [Abstract] Payments on finance lease obligations Finance Lease, Principal Payments Effect of liquidation on net income Effect of LIFO Inventory Liquidation on Income Disposal Group Classification [Axis] Disposal Group Classification [Axis] Goodwill Goodwill and Intangible Assets, Policy [Policy Text Block] Lease right-of-use assets – finance Finance Lease, Right-of-Use Asset, before Accumulated Amortization Disposal Group, Held-for-Sale, Not Discontinued Operations Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] Purchases of property, plant and equipment Payments to Acquire Other Property, Plant, and Equipment Total long-term liabilities Liabilities, Noncurrent Deferred income tax expense (benefit) Increase (Decrease) in Deferred Income Taxes Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] European RVs European RVs [Member] European RVs Foreign currency translation Standard Product Warranty Accrual, Foreign Currency Translation Gain (Loss) Property, Plant, and Equipment [Abstract] Property, Plant, and Equipment [Abstract] Entity Address, State or Province Entity Address, State or Province Senior unsecured notes Senior Unsecured Notes Due 2029 [Member] Senior Unsecured Notes Due 2029 PEO Total Compensation Amount PEO Total Compensation Amount Foreign currency translation gain (loss), net of tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax CAPITAL ACQUISITIONS: Segment Reporting, Long-Lived Asset, Expenditure for Addition Share Repurchase Program [Domain] Share Repurchase Program [Domain] Tax positions related to prior years: Additions Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Derivative, notional amount Derivative, Notional Amount Basic (in shares) Weighted-average shares outstanding for basic earnings per share (in shares) Weighted Average Number of Shares Outstanding, Basic Stock Based Compensation And Stockholders Equity [Table] Stock Based Compensation And Stockholders Equity [Table] Stock Based Compensation And Stockholders Equity [Table] Accumulated impairment charges Goodwill, Impaired, Accumulated Impairment Loss Nondeductible interest costs Effective Income Tax Rate Reconciliation, Nondeductible Expense, Interest, Amount Effective Income Tax Rate Reconciliation, Nondeductible Expense, Interest, Amount Losses on repurchase agreements Gain (Loss) From Repurchase Agreement Gain (Loss) From Repurchase Agreement For the fiscal year ending July 31, 2030 Lessee, Operating Lease, Liability, to be Paid, Year Four Recreation Vehicles Recreation Vehicles Recreational vehicles Recreation Vehicles [Member] Recreation vehicles. Schedule of Cash Flow, Supplemental Disclosures Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Class of Stock [Axis] Class of Stock [Axis] Financing related costs Debt Issuance Costs, Gross Accounts receivable, other, net Accounts and Other Receivables, Net, Current Cash dividends paid Payments of Ordinary Dividends Accumulated Amortization Intangible Asset, Finite-Lived, Accumulated Amortization Research and development Deferred Tax Asset, In-Process Research and Development Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Current portion of long-term debt Less: Current portion of long-term debt Long-Term Debt, Current Maturities Repurchase Agreements Repurchase and Resale Agreements Policy [Policy Text Block] Design/developed technology and other intangibles Design Tehcnology, Developed Technology And Non-Compete Agreements [Member] Design Technology, Developed Technology And Non-Compete Agreements Less treasury shares of 16,044,739 and 14,649,597, respectively, at cost Treasury Stock, Value Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Capital expenditures in accounts payable Capital Expenditures Incurred but Not yet Paid Product warranties Beginning balance Ending balance Standard Product Warranty Accrual, Current Land Land [Member] Gain on disposition of property, plant and equipment Gain (Loss) on Disposition of Property Plant Equipment Non-Controlling Interests Noncontrolling Interest [Member] Amortization of debt issuance costs and extinguishment charges Amortization of Debt Issuance Costs Unsecured Debt Unsecured Debt [Member] Research and Development Research and Development Expense, Policy [Policy Text Block] Total long-term debt, net of debt issuance costs Long-Term Debt PROPERTY, PLANT AND EQUIPMENT Property, Plant, and Equipment [Text Block] Global Intangible Low-Taxed Income / Subpart F Effective Income Tax Rate Reconciliation, NCTI, Percent Changes in assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Total unrecognized tax benefits Unrecognized Tax Benefits STOCKHOLDERS' EQUITY Equity [Text Block] Security Exchange Name Security Exchange Name Travel Trailers Travel Trailers And Other Towables [Member] Travel Trailers And Other Towables [Member] Gain on Business Interruption Insurance Recovery, Statement of Income or Comprehensive Income [Extensible Enumeration] Gain on Business Interruption Insurance Recovery, Statement of Income or Comprehensive Income [Extensible Enumeration] Foreign tax credit Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Percent Dealer Network Dealer Network [Member] tho_DealerNetworkMember Amended and Restated Equity and Incentive Plan Amended and Restated Equity and Incentive Plan [Member] Amended and Restated Equity and Incentive Plan Maximum number of shares issuable (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Finance lease right-of-use assets Finance Lease, Right-of-Use Asset, after Accumulated Amortization Schedule of Property, Plant and Equipment Property, Plant, and Equipment [Table Text Block] Comprehensive income: Statement of Comprehensive Income [Abstract] Name Outstanding Recovery, Individual Name Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] U.S. state and local Deferred State and Local Income Tax Expense (Benefit) Euro Interbank Offered Rate EURIBOR Euro Interbank Offered Rate EURIBOR [Member] Euro Interbank Offered Rate EURIBOR [Member] Geographical [Domain] Geographical [Domain] Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Cash paid for amounts included in the measurement of lease liabilities: Cash Flow, Lessee [Abstract] Cash Flow, Lessee Total long-term debt Outstanding loan balance Total long-term debt, gross Long-Term Debt, Gross Us Tranche Us Tranche [Member] Us Tranche [Member] Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Warrants to purchase shares Warrant [Member] Diluted (in shares) Weighted-average shares outstanding assuming dilution (in shares) Weighted Average Number of Shares Outstanding, Diluted Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Dealer networks/customer relationships Dealer Network and Customer Relationships [Member] Dealer Network and Customer Relationships [Member] Entity Emerging Growth Company Entity Emerging Growth Company Derivatives Derivatives, Policy [Policy Text Block] Repurchase and guarantee reserve balances Repurchase and Guarantee Reserve Balances Repurchase and guarantee reserve balances. Underlying Security Market Price Change Underlying Security Market Price Change, Percent Borrowings on revolving asset-based credit facilities Proceeds from Lines of Credit Amortization of debt issuance costs and extinguishment charges Amortization Of Debt Issuance Costs And Extinguishment Charges Amortization Of Debt Issuance Costs And Extinguishment Charges Less: Amount representing interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Maximum exposure to loss Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Long-lived asset costs Long-Lived Asset, Held and Used, Impairment Loss U.S. Federal Deferred Federal Income Tax Expense (Benefit) Treasury Stock Treasury Stock, Common [Member] Intangible Asset, Goodwill and Other [Abstract] Intangible Asset, Goodwill and Other [Abstract] Employee severance and related benefits Severance Costs Total future lease payments Lessee, Operating Lease, Liability, to be Paid Nonvested, beginning balance (in dollars per share) Nonvested, ending balance (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value All Executive Categories All Executive Categories [Member] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] AirX Intermediate Inc. AirX Intermediate Inc. [Member] AirX Intermediate Inc. Finance lease cost Finance leases: Finance Leases Finance Lease, Liability [Abstract] Other & Corporate Corporate And Reconciling Items [Member] Corporate And Reconciling Items Schedule of Difference Between Basic EPS and Diluted EPS Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] BUSINESS SEGMENTS Segment Reporting [Text Block] Minimum Minimum Minimum [Member] Auditor Name Auditor Name Liabilities: Liabilities [Abstract] Schedule of Revenue Disaggregation of Revenue [Table Text Block] Tax effects of restructuring Effective Income Tax Rate Reconciliation, Nondeductible Expense, Restructuring Charges, Amount Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement Location [Axis] Location, Statement of Income, Balance [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Total amount of interest and penalties expense recognized Unrecognized Tax Benefits Income Tax Penalties And Interest Income Expenses Unrecognized tax benefits, income tax penalties and interest (income) expenses. Effect of changes in tax laws or rates enacted in the current period Effect of foreign tax law change Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Long-Lived Asset, Held and Used, Impairment Loss, Statement of Income or Comprehensive Income [Extensible Enumeration] Long-Lived Asset, Held and Used, Impairment Loss, Statement of Income or Comprehensive Income [Extensible Enumeration] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Property, plant and equipment, net Property, Plant, and Equipment and Finance Lease and Operating Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Property, Plant, and Equipment and Finance Lease and Operating Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Long-lived and intangible assets, useful life (in years) Intangible Asset, Finite-Lived, Useful Life Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] CONCENTRATION OF RISK Concentration Risk Disclosure [Text Block] Employee deferrals and returns of investments Deferred compensation plan mutual fund assets Deferred Compensation Plan Assets Intangibles Deferred Tax Liabilities, Intangible Assets Exercise Price Award Exercise Price Restructuring Cost [Table] Restructuring Cost [Table] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Stock repurchase program authorized amount Share Repurchase Program, Authorized, Amount Segment Reporting [Line Items] Segment Reporting [Line Items] Total fair value of net assets acquired Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill, Less Noncontrolling Interest Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Accrued liabilities: Accrued Liabilities, Current [Abstract] European Europe [Member] EMPLOYEE BENEFIT PLANS Compensation and Employee Benefit Plans [Text Block] Restricted Cash and Cash Equivalents [Axis] Restricted Cash and Cash Equivalents [Axis] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity investments Carrying amount of equity investments Equity Method Investments Beginning balance Ending balance Restructuring Reserve Equity Component [Domain] Equity Component [Domain] Adoption Date Trading Arrangement Adoption Date Inventories Inventory, Policy [Policy Text Block] June Twenty Twenty Two Share Repurchase Plan June Twenty Twenty Two Share Repurchase Plan [Member] June Twenty Twenty Two Share Repurchase Plan Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Accounting Policies [Abstract] Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Total operating lease liabilities Total reported lease liability Operating Lease, Liability Total finance lease liabilities Total reported lease liability Finance Lease, Liability Short-term financial obligations and other, net Proceeds from (Payment for) Other Financing Activity Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Selling, general and administrative expenses SELLING, GENERAL AND ADMINISTRATIVE EXPENSES: Selling, General and Administrative Expense Business Combination [Domain] Business Combination [Domain] Letters of Credit Letter of Credit [Member] CONTINGENT LIABILITIES AND COMMITMENTS Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] All Adjustments to Compensation All Adjustments to 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Amortizable Intangible Assets Intangible Asset, Finite-Lived [Table Text Block] Fifth Wheels Fifth Wheels Towables [Member] Fifth Wheels Towables [Member] City Area Code City Area Code SUBSEQUENT EVENT Subsequent Events [Text Block] Tax effects of restructuring Effective Income Tax Rate Reconciliation, Nondeductible Expense, Restructuring Charges, Percent Debt, fair value Debt Instrument, Fair Value Disclosure Name Forgone Recovery, Individual Name Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Weighted- Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Entity [Domain] Entity [Domain] Campervan Campervan [Member] Effective Income Tax Rate Reconciliation [Line Items] Effective Income Tax Rate Reconciliation [Line Items] Stock-Based Compensation Share-Based Payment Arrangement [Policy Text Block] Schedule of Components of Total Unrecognized Tax Benefits Schedule Of Unrecognized Tax Benefits [Table Text Block] Schedule Of Unrecognized Tax Benefits [Table Text Block] OCI before reclassifications Other Comprehensive Income (Loss), before Reclassifications, before Tax Provision Standard Product Warranty Accrual, Increase for Warranties Issued Total net long-term deferred tax assets (liabilities) Deferred Tax Liabilities, Net Other Effective Income Tax Rate Reconciliation, Cross-Border, Other, Amount Unrecognized tax benefits Long-term Long Term Portion of Unrecognized Tax Benefits Including Interest and Penalties Long term portion of unrecognized tax benefits including interest and penalties. 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Payments of Debt Issuance Costs Asset Based Credit Facility Asset Based Credit Facility [Member] Asset Based Credit Facility [Member] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Current Reporting Status Entity Current Reporting Status Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Other assets: Other Assets, Noncurrent [Abstract] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] North  American Motorized Motorized [Member] Motorized Research and development costs Research and Development Expense Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] For the fiscal year ending July 31, 2029 Long-Term Debt, Maturity, Year Three PROPERTY, 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Underlying Securities Amount Comprehensive (loss) attributable to non-controlling interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest REVENUE RECOGNITION Revenue from Contract with Customer [Text Block] Foreign currency forward contract Foreign Currency Contracts, Liability, Fair Value Disclosure Lease right-of-use assets – operating Operating Lease, Right-Of-Use Asset, Before Accumulated Depreciation Operating Lease, Right-Of-Use Asset, Before Accumulated Depreciation Schedule of Sources of Income Before Income Taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Income Tax Jurisdiction, Domestic State and Local Income Tax Jurisdiction, Domestic State and Local [Member] DERIVATIVES AND HEDGING Financial Instruments Disclosure [Text Block] Other Payment for (Proceeds from) Other Investing Activity Inventories Increase (Decrease) in Inventories Amount reclassified out of accumulated other comprehensive income (loss) Gain (Loss) on Derivative Used in Net Investment Hedge, after Tax Operating leases (as percent) Operating Lease, Weighted Average Discount Rate, Percent Remaining shares available for grant (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Segment Reporting [Table] Segment Reporting [Table] Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Schedule of Components of Lease Costs and Other Information Related to Leases Lease, Cost [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Current Fiscal Year End Date Current Fiscal Year End Date Operating leases Deferred Tax Assets, Operating Leases Deferred Tax Assets, Operating Leases Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Weighted-average discount rate Leases, Weighted Average Discount Rate [Abstract] Leases, Weighted Average Discount Rate Other Long Term Debt Other Long Term Debt [Member] Derivative [Line Items] Derivative [Line Items] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Dividends, per common share (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity File Number Entity File Number For the fiscal year ending July 31, 2032 and thereafter Intangible Asset, Finite-Lived, Estimated Amortization Expense, after Year Five Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Office Buildings And Office Equipment Office Buildings And Office Equipment [Member] Office Buildings And Office Equipment Measure: Measure [Axis] EQUITY INVESTMENTS AND ACQUISITION Equity Method Investments and Joint Ventures Disclosure [Text Block] Treasury, shares (in shares) Beginning balance (in shares) Ending balance (in shares) Treasury Stock, Common, Shares Equity Components [Axis] Equity Components [Axis] Income taxes paid Total income taxes paid (net of refunds) Income Tax Paid, after Refund Received Valuation allowance Deferred Tax Assets, Valuation Allowance Entity Interactive Data Current Entity Interactive Data Current Other current liabilities Finance Lease, Liability, Current Variable Rate [Axis] Variable Rate [Axis] Less: Net income (loss) attributable to non-controlling interests Net Income (Loss) Attributable to Noncontrolling Interest Entity Small Business Entity Small Business Comprehensive income attributable to THOR Industries, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Acquired finite-lived intangible assets, weighted average useful life (in years) Intangible Asset, Finite-Lived, Acquired, Weighted-Average Amortization Period Property, Plant, and Equipment [Line Items] Property, Plant, and Equipment [Line Items] Insurance Reserves Insurance Reserves [Policy Text Block] Insurance reserves Policy Text Block. Effective Income Tax Rate Reconciliation [Table] Effective Income Tax Rate Reconciliation [Table] Germany GERMANY MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] PRODUCT WARRANTY Product Warranty Disclosure [Text Block] Nondeductible compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount Total other assets Other Assets, Noncurrent For the fiscal year ending July 31, 2029 Finance Lease, Liability, to be Paid, Year Three Document Type Document Type Business acquisitions, net of cash acquired Total cash consideration for acquisition, less cash acquired Payments to Acquire Businesses, Net of Cash Acquired Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Target share multiple Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Target Share Multiple Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Target Share Multiple Administrative expense Gain (Loss) on Extinguishment of Debt Tax positions related to prior years: Reductions Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Subsequent Event [Line Items] Subsequent Event [Line Items] Local Phone Number Local Phone Number Work in process Inventory, Work in Process, Gross Canada CANADA Total deferred tax (liabilities) Deferred Tax Liabilities, Gross Euro Tranche Euro Tranche [Member] Euro tranche [Member] Nature of Operations Nature of Operations [Policy Text Block] Nature of operations Policy Text Block. Tax positions related to current year: Additions Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Income before income taxes INCOME (LOSS) BEFORE INCOME TAXES: Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Contingent liabilities and commitments Commitments and Contingencies Property, plant, and equipment Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] For the fiscal year ending July 31, 2030 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four Machinery and Equipment Machinery and equipment Machinery and Equipment [Member] Executive Category: Executive Category [Axis] Other Effective Income Tax Rate Reconciliation, Cross-Border, Other, Percent Business Combinations Business Combination [Policy Text Block] LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Inventories, net Total inventories, net Inventory, Net Swingline Credit Facility Swingline Credit Facility [Member] Swingline Credit Facility Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Movement in Standard Product Warranty Accrual [Roll Forward] Movement in Standard Product Warranty Accrual [Roll Forward] Guarantees and Product Warranties [Abstract] Guarantees and Product Warranties [Abstract] Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] PEO Name PEO Name Inventory basis Deferred Tax Assets Liabilities Inventory Deferred tax assets (liabilities), inventory. Short-term financial obligations Other Short-Term Borrowings Less: Cash received Cash Acquired from Acquisition Property, Plant and Equipment, Type [Axis] Long-Lived Asset, Class [Axis] Bermuda BERMUDA Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number European European European European [Member] Tax benefits related to total stock compensation expense Share-Based Payment Arrangement, Expense, Tax Benefit Revenue Recognition Revenue [Policy Text Block] TechNexus TechNexus [Member] TechNexus Accounts payable Increase (Decrease) in Accounts Payable Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Base Rate Base Rate [Member] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Disallowed interest carryforwards, valuation allowance Disallowed Interest Carryforwards, Valuation Allowance Disallowed Interest Carryforwards, Valuation Allowance Total comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Debt Instrument [Axis] Debt Instrument [Axis] Subsequent Event [Table] Subsequent Event [Table] Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Total lease cost Lease, Cost Short-term, included in “Income and other taxes” Unrecognized Tax Benefits Current Unrecognized tax benefits current. Income Tax Authority, Name [Domain] Income Tax Authority, Name [Domain] Disposal Group Name [Axis] Disposal Group Name [Axis] Basic (in dollars per share) Earnings Per Share, Basic Weighted-average remaining lease term Weighted Average Remaining Lease Term [Abstract] Weighted Average Remaining Lease Term Total current assets Assets, Current Insider Trading Arrangements [Line Items] Long-term debt Total long-term debt, net, less current portion Long-Term Debt, Excluding Current Maturities Changes in valuation allowances Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] Document Annual Report Document Annual Report Accounts receivable, trade, net Accounts Receivable, after Allowance for Credit Loss, Current Employee benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits North American Towable RVs North American Towable RVs [Member] North American Towable RVs Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] North American Motorized RVs North American Motorized RVs [Member] North American Motorized RVs Advertising Costs Advertising Cost [Policy Text Block] Income Tax Authority, Name [Axis] Income Tax Authority, Name [Axis] Minimum coverage ratio Debt Covenant, Coverage Ratio, Minimum Debt Covenant, Coverage Ratio, Minimum Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover page. Cover [Abstract] Deferred compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Additional borrowing amount Line of Credit Facility, Additional Borrowing Amount Line of Credit Facility, Additional Borrowing Amount United Kingdom UNITED KINGDOM Concentration risk (as percent) Concentration Risk, Percentage Equity Awards Adjustments Equity Awards Adjustments [Member] Gross state tax net operating loss carry forwards Net Operating Loss Carry forwards Net operating loss carryforwards. Income Tax Authority [Domain] Income Tax Jurisdiction [Domain] Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Expenses recorded related to product recall costs Loss Contingency Accrual, Loss (Reversal of Loss) Long-term liabilities and other Increase (Decrease) in Other Noncurrent Liabilities Other debt Other Long-Term Debt Other income, net OTHER EXPENSE (INCOME), NET: Other Nonoperating Income (Expense) LONG-TERM DEBT Long-Term Debt [Text Block] FX gain and loss not subject to foreign taxation Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent For the fiscal year ending July 31, 2031 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Five Stockholders' Equity Attributable to THOR Parent [Member] TN-RP Holding LLC TN-RP Holding LLC [Member] TN-RP Holding LLC Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Nondeductible interest costs Effective Income Tax Rate Reconciliation, Nondeductible Expense, Interest, Percent Effective Income Tax Rate Reconciliation, Nondeductible Expense, Interest, Percent Share Repurchase Program [Axis] Share Repurchase Program [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Class of Stock [Domain] Class of Stock [Domain] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Foreign currency forward contracts Foreign Exchange Forward [Member] Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Income Tax Authority [Axis] Income Tax Jurisdiction [Axis] Terms of commitments (in months) Terms of Commitments under Repurchase Agreements for Repurchase of Products Sold to Dealers Terms of commitments under repurchase agreements for the repurchase of products sold to dealers. INCOME TAXES Income Tax Disclosure [Text Block] Accounts payable Accounts Payable, Current For the fiscal year ending July 31, 2031 Lessee, Operating Lease, Liability, to be Paid, Year Five December Twenty Twenty One Share Repurchase Plan December Twenty Twenty One Share Repurchase Plan [Member] December Twenty Twenty One Share Repurchase Plan Operating leases Deferred Tax Liabilities, Leasing Arrangements Schedule of Income Tax Examinations Summary of Income Tax Examinations [Table Text Block] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Entity Filer Category Entity Filer Category Advertising costs Advertising Expense Payments on term-loan credit facilities Repayment Of Term Loan Repayment of term loan. Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Warrants to purchase shares Warrants, Fair Value Disclosure Warrants, Fair Value Disclosure Net income Net income Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Other RV-related Other RV Related [Member] Current assets: Assets, Current [Abstract] Initial installment of insurance proceeds Insurance Recoveries Fair value liability Derivative Liability Foreign Currency Foreign Currency Transactions and Translations Policy [Policy Text Block] Entity Address, Address Line One Entity Address, Address Line One Operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value North America North America [Member] Income taxes Total income tax expense Income Tax Expense (Benefit) Risks and Uncertainties [Abstract] Risks and Uncertainties [Abstract] Principles of Consolidation Consolidation, Policy [Policy Text Block] Investments Deferred Tax Liabilities, Investments Statement [Table] Statement [Table] Share-based Payment Arrangement, Tranche Two Share-Based Payment Arrangement, Tranche Two [Member] Interest rate swaps Interest Rate Derivative Liabilities, at Fair Value U.S. Federal Current Federal Tax Expense (Benefit) Derivative Instruments and Hedging Activities Disclosure [Abstract]